| Abbreviation | Definition |
|---|---|
| AOIC | Agrico Overseas Investment Company |
| AOIC | Alaska Open Image Center |
| AOIFE | Association Of Institutions for Feminist Education |
| AOL | America Online |
| AOL | American Online |
| AOLP | AOL Platforms |
| AOPI | Orthotics And Prosthetics Inc |
| AOPL | Aluminium Offshore Pte Ltd |
| AOPL | Asare Odometa Plantations Ltd |
| AOPL | Auckland Office Products Ltd |
| AOPR | Alpha Omega Public Relations |
| AOS | American Ostomy Supply |
| AOTL | Art of Technology Ltd |
| AP | Applications Plus |
| AP | Armscor Precision |
| AP | Associated Press |
| AP | Astrodamus Productions |
| AP | Atlantic Pacific |
| AP | Audemars Piguet |
| APA | Axxess Protection Agency |